CVE-2026-24740 Dozzle Agent Label-Based Access Control Bypass Allows Unauthorized Container Shell Access

High 8.7 Published Updated

Attackers with restricted label access can bypass controls to gain root shell access in out-of-scope Docker containers on the same host.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-24740?

CVE-2026-24740 is a high-severity missing authorization vulnerability in amir20 dozzle, published on 27 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Dozzle is a realtime log viewer for docker containers. Prior to version 9.0.3, a flaw in Dozzle’s agent-backed shell endpoints allows a user restricted by label filters (for example, `label=env=dev`) to obtain an interactive root shell in out‑of‑scope containers (for example, `env=prod`) on the same agent host by directly targeting their container IDs. Version 9.0.3 contains a patch for the issue.

Weakness: CWE-863, CWE-284

Which versions are affected by CVE-2026-24740?

3 open source packages ship an affected version, including github.com/amir20/dozzle. It affects 1 product.

PackageAffectedFixed in
github.com/amir20/dozzle GoAll versions1.29.1-0.20260125230338-620e59aa2463
github.com/amir20/dozzle GoAll versions1.29.1-0.20260125230338-620e59aa2463
github.com/amir20/dozzle GoAll versions1.29.1-0.20260125230338-620e59aa2463

Products include Amirraminfar Dozzle.

How do I fix CVE-2026-24740?

Upgrade github.com/amir20/dozzle to 1.29.1-0.20260125230338-620e59aa2463 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-24740 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-24740 exists.

Sources

Also known as GHSA-m855-r557-5rc5, GO-2026-4380.

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